/******************************************************************************
** 公司名称：天津柯迪斯科技有限公司
** 版权信息：
** 文件名称： bsp_USART.c
** 模块名称： KD986_New仪表串口初始化模块
** 版 本 号： V1.0
** 作    者： 蒲磊
** 
** 修改记录： 版本     修改人      时间         修改内容
**
******************************************************************************/
 
/******************************************************************************
* 头文件
******************************************************************************/
#include <string.h>
#include <stdio.h>
#include "bsp_USART.h"
#include "App_Protocol.h"

/******************************************************************************
* 本文件宏定义 ('#define')                             
******************************************************************************/

/******************************************************************************
* 本文件类型定义 ('typedef')                                         
******************************************************************************/

/******************************************************************************
* 本文件静态函数声明 ('static')
******************************************************************************/

/******************************************************************************
* 全局变量定义 
******************************************************************************/
uint8_t USART1_Tx_Buffer[USART1_TX_BUFFER_SIZE] = {0};		/*USART1发送缓冲区*/
uint8_t USART1_Rx_Buffer[USART1_RX_BUFFER_SIZE] = {0};		/*USART1接收缓冲区*/
uint8_t	USART_BT_Rx_Buffer[USART_BT_RX_BUFFER_SIZE]   = {0};		/*和蓝牙模块通信串口接收缓冲区*/
/*****************************************************************************
* 函数实现 - global ('extern') and local ('static')
******************************************************************************/

UART_HandleTypeDef huart1;
UART_HandleTypeDef huart2;
DMA_HandleTypeDef hdma_usart1_rx;
DMA_HandleTypeDef hdma_usart1_tx;
DMA_HandleTypeDef hdma_usart2_rx;
DMA_HandleTypeDef hdma_usart2_tx;
/* USART1 init function */

void MX_USART1_UART_Init(uint16_t baudrate)
{

  /* USER CODE BEGIN USART1_Init 0 */
  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();
 
  /* DMA1_Channel2_3_IRQn interrupt configuration  - UART1 TX RX CN*/
  HAL_NVIC_SetPriority(DMA1_Channel2_3_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel2_3_IRQn);
  /* USER CODE END USART1_Init 0 */

  /* USER CODE BEGIN USART1_Init 1 */

  /* USER CODE END USART1_Init 1 */
  huart1.Instance = USART1;
  huart1.Init.BaudRate = baudrate;
  huart1.Init.WordLength = UART_WORDLENGTH_8B;
  huart1.Init.StopBits = UART_STOPBITS_1;
  huart1.Init.Parity = UART_PARITY_NONE;
  huart1.Init.Mode = UART_MODE_TX_RX;
  huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart1.Init.OverSampling = UART_OVERSAMPLING_16;
  huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart1.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetTxFifoThreshold(&huart1, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_SetRxFifoThreshold(&huart1, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_UARTEx_EnableFifoMode(&huart1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART1_Init 2 */

  /* USER CODE END USART1_Init 2 */

}
/* USART2 init function 配置串口波特率、数据格式等  */

void MX_USART2_UART_Init(void)
{
  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();
 
  /* DMA1_Ch4_5_DMAMUX1_OVR_IRQn interrupt configuration - UART2 TX RX CN*/
  HAL_NVIC_SetPriority(DMA1_Ch4_5_DMAMUX1_OVR_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Ch4_5_DMAMUX1_OVR_IRQn);
    
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 9600;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart2.Init.ClockPrescaler = UART_PRESCALER_DIV1;
  huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart2) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN USART2_Init 2 */

  /* USER CODE END USART2_Init 2 */

}
/*配置串口时钟、GPIO、中断初始化*/
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{

  GPIO_InitTypeDef GPIO_InitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
  if(uartHandle->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspInit 0 */

  /* USER CODE END USART1_MspInit 0 */

  /** Initializes the peripherals clocks
  */
    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
    PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK1;
    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
    {
      Error_Handler();
    }

    /* USART1 clock enable */
    __HAL_RCC_USART1_CLK_ENABLE();

    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**USART1 GPIO Configuration
    PB6     ------> USART1_TX
    PB7     ------> USART1_RX
    */
    GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF0_USART1;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* USART1 DMA Init */
    /* USART1_RX Init */
    hdma_usart1_rx.Instance = DMA1_Channel2;
    hdma_usart1_rx.Init.Request = DMA_REQUEST_USART1_RX;
    hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_rx.Init.Mode = DMA_NORMAL;
    hdma_usart1_rx.Init.Priority = DMA_PRIORITY_HIGH;
    if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);

    /* USART1_TX Init */
    hdma_usart1_tx.Instance = DMA1_Channel3;
    hdma_usart1_tx.Init.Request = DMA_REQUEST_USART1_TX;
    hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart1_tx.Init.Mode = DMA_NORMAL;
    hdma_usart1_tx.Init.Priority = DMA_PRIORITY_MEDIUM;
    if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);

    /* USART1 interrupt Init */
    HAL_NVIC_SetPriority(USART1_IRQn, 1, 0);
    HAL_NVIC_EnableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspInit 1 */
    //__HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE);
  /* USER CODE END USART1_MspInit 1 */
  }
  else if(uartHandle->Instance==USART2)
  {
  /* USER CODE BEGIN USART2_MspInit 0 */

  /* USER CODE END USART2_MspInit 0 */

    /* USART2 clock enable */
    __HAL_RCC_USART2_CLK_ENABLE();

    __HAL_RCC_GPIOA_CLK_ENABLE();
    /**USART2 GPIO Configuration
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX
    */
    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF1_USART2;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* USART2 DMA Init */
    /* USART2_RX Init */
    hdma_usart2_rx.Instance = DMA1_Channel4;
    hdma_usart2_rx.Init.Request = DMA_REQUEST_USART2_RX;
    hdma_usart2_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
    hdma_usart2_rx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart2_rx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart2_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart2_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart2_rx.Init.Mode = DMA_NORMAL;
    hdma_usart2_rx.Init.Priority = DMA_PRIORITY_LOW;
    if (HAL_DMA_Init(&hdma_usart2_rx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmarx,hdma_usart2_rx);

 
    /* USART1_TX Init */
    hdma_usart2_tx.Instance = DMA1_Channel5;
    hdma_usart2_tx.Init.Request = DMA_REQUEST_USART1_TX;
    hdma_usart2_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
    hdma_usart2_tx.Init.PeriphInc = DMA_PINC_DISABLE;
    hdma_usart2_tx.Init.MemInc = DMA_MINC_ENABLE;
    hdma_usart2_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
    hdma_usart2_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
    hdma_usart2_tx.Init.Mode = DMA_NORMAL;
    hdma_usart2_tx.Init.Priority = DMA_PRIORITY_MEDIUM;
    if (HAL_DMA_Init(&hdma_usart2_tx) != HAL_OK)
    {
      Error_Handler();
    }

    __HAL_LINKDMA(uartHandle,hdmatx,hdma_usart2_tx);
  
    
    /* USART2 interrupt Init */
    HAL_NVIC_SetPriority(USART2_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USART2_IRQn);

  }
}

/*串口复位函数*/
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{

  if(uartHandle->Instance==USART1)
  {
  /* USER CODE BEGIN USART1_MspDeInit 0 */

  /* USER CODE END USART1_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART1_CLK_DISABLE();

    /**USART1 GPIO Configuration
    PB6     ------> USART1_TX
    PB7     ------> USART1_RX
    */
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_6|GPIO_PIN_7);

    /* USART1 DMA DeInit */
    HAL_DMA_DeInit(uartHandle->hdmarx);
    HAL_DMA_DeInit(uartHandle->hdmatx);

    /* USART1 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART1_IRQn);
  /* USER CODE BEGIN USART1_MspDeInit 1 */

  /* USER CODE END USART1_MspDeInit 1 */
  }
  else if(uartHandle->Instance==USART2)
  {
  /* USER CODE BEGIN USART2_MspDeInit 0 */

  /* USER CODE END USART2_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_USART2_CLK_DISABLE();

    /**USART2 GPIO Configuration
    PA2     ------> USART2_TX
    PA3     ------> USART2_RX
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);

    /* USART2 DMA DeInit */
    HAL_DMA_DeInit(uartHandle->hdmarx);

    /* USART2 interrupt Deinit */
    HAL_NVIC_DisableIRQ(USART2_IRQn);
  /* USER CODE BEGIN USART2_MspDeInit 1 */

  /* USER CODE END USART2_MspDeInit 1 */
  }
}


/******************************************************************************
** 功  能：串口1初始化
** 参  数：Bandrate-波特率
** 返回值：无
** 备  注：用于仪表和控制器通信。PA9=USART1_TX,PA10=USART1_RX
**         通信采用Idle中断+DMA的方式进行接收不定长数据
******************************************************************************/
void vBsp_USART1_Init(void)
{
    MX_USART1_UART_Init(9600);          /*初始化串口1，用于和控制器通信*/
    
	HAL_UARTEx_ReceiveToIdle_DMA(&huart1,USART1_Rx_Buffer,USART1_RX_BUFFER_SIZE);
    
}

/******************************************************************************
** 功  能：串口3初始化
** 参  数：Bandrate-波特率
** 返回值：无
** 备  注：用于仪表和蓝牙模块通信
**         通信采用Idle中断+DMA的方式进行接收不定长数据
******************************************************************************/
void vBsp_USART_BT_Init(void)
{
    MX_USART2_UART_Init();          /*初始化串口2，用于和蓝牙通信*/
	HAL_UARTEx_ReceiveToIdle_DMA(&huart2,USART_BT_Rx_Buffer,USART_BT_RX_BUFFER_SIZE);
}

/******************************************************************************
** 功  能：串口接收事件回调函数
** 参  数：无
** 返回值：无
** 备  注：用于检测一帧接收完毕
******************************************************************************/
void HAL_UARTEx_RxEventCallback(UART_HandleTypeDef *huart, uint16_t Size)
{
    uint8_t n;
    
    if(huart->Instance == USART1)
    {
        if(huart1.RxEventType == HAL_UART_RXEVENT_IDLE)     /*确认是空闲中断事件*/
        {
            HAL_UART_DMAStop(&huart1);           /*禁用DMA传输*/
            /*此处拷贝接收到的数据，给协议处理层*/
            vPROTOCOL_Get_OneFrame(USART1_Rx_Buffer,Size);
            
            HAL_UARTEx_ReceiveToIdle_DMA(&huart1,USART1_Rx_Buffer,USART1_RX_BUFFER_SIZE);       /*重新开启DMA传输*/
        }
    }
    else if(huart->Instance == USART2)
    {
        if(huart2.RxEventType == HAL_UART_RXEVENT_IDLE)     /*确认是空闲中断事件*/
        {
            HAL_UART_DMAStop(&huart1);           /*禁用DMA传输*/
            /*此处拷贝接收到的数据，给协议处理层*/
//            for(n = 0;n < Size;n++)
//            {
//                uart_receive_input(USART_BT_Rx_Buffer[n]);                /*将Uart1接收到的数据传给蓝牙*/                                     /*注意必须每个字节调用一次，否则出错*/
//                bt_uart_service();
//            }
            HAL_UARTEx_ReceiveToIdle_DMA(&huart1,USART1_Rx_Buffer,USART1_RX_BUFFER_SIZE);       /*重新开启DMA传输*/
        }
    }
}






/******************************************************************************
** 功  能：串口1发送函数
** 参  数：pData-要发送到数据指针，Len-要发送到数据长度
** 返回值：无
** 备  注：采用DMA发送，函数立即返回
******************************************************************************/
void USART_MCU_Send_Frame(uint8_t *pData,uint16_t Len)
{
	memcpy(USART1_Tx_Buffer,pData,Len);				/*拷贝数据到发送缓冲区*/
	
	HAL_UART_Transmit_DMA(&huart1,USART1_Tx_Buffer,Len);   /*启动DMA发送*/
}

/******************************************************************************
** 功  能：蓝牙串口发送函数
** 参  数：pData-要发送到数据指针，Len-要发送到数据长度
** 返回值：无
** 备  注：采用DMA发送，函数立即返回
******************************************************************************/
void USART_BT_Send_Frame(uint8_t *pData,uint16_t Len)
{
#if USE_BLUETOOTH == 1 
    HAL_UART_Transmit(huart2,pData,Len,1000);
#endif	
}


